Publications Repository - Helmholtz-Zentrum Dresden-Rossendorf

2 Publications

Numerical Modeling of Turbulent Melt Flow in a Continuous Casting Mold Affected by an Electromagnetic Brake

Miao, X.; Timmel, K.; Lucas, D.; Ren, Z.; Eckert, S.; Gerbeth, G.

The current work combines numerical and experimental investigations based on a small-scale mockup using the eutectic alloy GaInSn. The jet flow discharging from the submerged entry nozzle was exposed perpendicularly to a DC magnetic field across the entire wide face of the mold. Numerical calculations were performed by using the commercial package CFX with an implemented RANS-SST turbulence model. The anisotropic properties of the MHD turbulence were taken into account by specific modifications of the turbulence model. The comparison between our numerical calculations and the experimental results shows a very well agreement. In particular, the modified RANS-SST turbulence model is capable to reconstruct the peculiar phenomenon of the excitation of non-steady, non-isotropic large-scale flow perturbations caused by the application of the DC magnetic field. Another important finding of our study is the feature that the electrical boundary conditions, namely the wall conductivity ratio, have a great impact on the mold flow subjected to an external magnetic field.

Keywords: continuous casting; electromagnetic brake; RANS-SST turbulence model; MHD turbulence

  • Open Access Logo Contribution to proceedings
    7th International Conference on Electromagnetic Processing of Materials (EPM2012), 22.-26.10.2012, Peking, China
    Proceedings of the 7th International Conference on Electromagnetic Processing of Materials
  • Open Access Logo Journal of Iron and Steel Research International 19(2012)Suppl.1, 845-848

Permalink: https://www.hzdr.de/publications/Publ-18446
Publ.-Id: 18446